lockd: Update nsm_find() to support non-AF_INET addresses

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index b9eeafe99a6622671eba8fea57f7392bc3a7a094..be8f19d53183cdb6a5c140a5d778608bae9118f3 100644 (file)
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -32,7 +32,8 @@ static int                    nrhosts;
 static DEFINE_MUTEX(nlm_host_mutex);
 
 static void                    nlm_gc_hosts(void);
-static struct nsm_handle       *nsm_find(const struct sockaddr_in *sin,
+static struct nsm_handle       *nsm_find(const struct sockaddr *sap,
+                                               const size_t salen,
                                                const char *hostname,
                                                const size_t hostname_len,
                                                const int create);
@@ -185,7 +186,8 @@ static struct nlm_host *nlm_lookup_host(int server,
                atomic_inc(&nsm->sm_count);
        else {
                host = NULL;
-               nsm = nsm_find(sin, hostname, hostname_len, 1);
+               nsm = nsm_find((struct sockaddr *)sin, sizeof(*sin),
+                               hostname, hostname_len, 1);
                if (!nsm) {
                        dprintk("lockd: nlm_lookup_host failed; "
                                "no nsm handle\n");
@@ -417,7 +419,8 @@ void nlm_host_rebooted(const struct sockaddr_in *sin,
        struct nsm_handle *nsm;
        struct nlm_host *host;
 
-       nsm = nsm_find(sin, hostname, hostname_len, 0);
+       nsm = nsm_find((struct sockaddr *)sin, sizeof(*sin),
+                       hostname, hostname_len, 0);
        if (nsm == NULL) {
                dprintk("lockd: never saw rebooted peer '%.*s' before\n",
                                hostname_len, hostname);
@@ -557,7 +560,8 @@ nlm_gc_hosts(void)
 static LIST_HEAD(nsm_handles);
 static DEFINE_SPINLOCK(nsm_lock);
 
-static struct nsm_handle *nsm_find(const struct sockaddr_in *sin,
+static struct nsm_handle *nsm_find(const struct sockaddr *sap,
+                                  const size_t salen,
                                   const char *hostname,
                                   const size_t hostname_len,
                                   const int create)
@@ -565,7 +569,7 @@ static struct nsm_handle *nsm_find(const struct sockaddr_in *sin,
        struct nsm_handle *nsm = NULL;
        struct nsm_handle *pos;
 
-       if (!sin)
+       if (!sap)
                return NULL;
 
        if (hostname && memchr(hostname, '/', hostname_len) != NULL) {
@@ -585,7 +589,7 @@ retry:
                        if (strlen(pos->sm_name) != hostname_len
                         || memcmp(pos->sm_name, hostname, hostname_len))
                                continue;
-               } else if (!nlm_cmp_addr(nsm_addr(pos), (struct sockaddr *)sin))
+               } else if (!nlm_cmp_addr(nsm_addr(pos), sap))
                        continue;
                atomic_inc(&pos->sm_count);
                kfree(nsm);
@@ -605,8 +609,8 @@ retry:
        if (nsm == NULL)
                return NULL;
 
-       memcpy(nsm_addr(nsm), sin, sizeof(*sin));
-       nsm->sm_addrlen = sizeof(*sin);
+       memcpy(nsm_addr(nsm), sap, salen);
+       nsm->sm_addrlen = salen;
        nsm->sm_name = (char *) (nsm + 1);
        memcpy(nsm->sm_name, hostname, hostname_len);
        nsm->sm_name[hostname_len] = '\0';